JP3433639B2 - Mounting structure of protective cover for wiring equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a wiring device protective cover, and more particularly to a technique for easily and quickly mounting the wiring device protective cover to improve workability. .

[0002]

2. Description of the Related Art Conventionally, a protective cover for a wiring device has a low workability because it is screwed to a mounting frame mounted on a construction surface. Therefore, it is proposed to engage the hook arm on the side of the protective cover for the wiring device in the mounting hole formed in the mounting frame as in Japanese Patent Publication No. 57-3296, but a relatively long hook arm is used for the mounting hole. There was a problem that the work of inserting and locking was troublesome and the mounting was not stable.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and can be easily and quickly mounted without screwing to improve workability and mounting. An object of the present invention is to provide a mounting structure for a protective cover for a wiring device that can stabilize the state.

[0004]

According to a first aspect of the present invention, there is provided a mounting structure for a wiring device protective cover which is mounted on a mounting frame 1 which covers the wiring device and is mounted on a construction surface, and is formed in a U-shaped cross section. Hooking arms 3 are provided at both ends of the covered cover body 2 so as to face each other, and elastic locking claws 4 are formed on the hooking arms 3, and the elastic locking claws 4 are formed in a substantially U shape.
The claw tip is formed so that the claw tip becomes wider toward the claw tip side.
A slant surface T is formed, and a slit-shaped mounting hole 5 having a width narrower than the free state of the elastic locking claw 4 is formed in the mounting frame 1, and the elastic locking claw 4 penetrates the mounting hole 5 to form the elastic locking claw. It is characterized in that the claw tip 4a of the elastic locking claw 4 is locked to the back surface edge of the mounting hole 5 by elastic restoration of 3.

According to the invention of claim 2, in addition to the invention of claim 1, the cover body 2 covers the wiring devices arranged in parallel.
It is characterized in that it is formed in a double form and a partition wall 6 is provided in the central portion .

The invention of claim 3 is characterized in that, in addition to the invention of claim 2 , the partition wall 6 is configured to be separable. According to the structure of claim 1, when the cover main body 2 is attached to the attachment frame 1 attached to the construction surface, the elastic locking claws 4 having a U-shaped cross section are contracted into the slit-shaped attachment holes 5 by elastic displacement. The cover body 2 is attached to the mounting frame 1 by penetrating the mounting hole 5 and elastically restoring the elastic locking claw 4 after the penetration, and locking the claw tip 4a to the rear edge of the mounting hole 5. It can be done easily and quickly, improving workability compared to screw fixing work.

Further, in the structure of claim 1 , the elastic member
The pawl 4 is formed in a substantially U-shape, and the tip of the pawl has a nail tip.
An inclined surface T that becomes wider toward the side is formed.
Thus, the elastic locking claw 4 can be easily inserted into the mounting frame 1. In the configuration of claim 2 , claim 1
In addition to the above function, the partition wall 6 can prevent wiring devices arranged in parallel from touching each other and suppress signal interference between the wiring devices.

According to the third aspect of the invention, in addition to the function of the second aspect , the partition wall 6 can be removed if necessary, and the degree of freedom in the specifications of the wiring device protective cover can be increased.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings. 1 shows a protective cover A for wiring equipment,
FIG. 2 is an exploded perspective view showing a mounting frame 1 and the like mounted on a construction surface (not shown), and FIG. 2 is a perspective view showing a mounting state. A wiring device S such as a switch is mounted on the mounting frame 1,
Such a wiring device S, including its wiring and connecting portions, is covered with and protected by the wiring device protective cover A. The mounting frame 1 has a substantially rectangular decorative frame 7 made of synthetic resin.
The plate-shaped decorative plate 8 is detachably attached to the decorative frame 7.

The mounting frame 1 is made of metal, and has a screw hole 9 for mounting the decorative frame 7, for example, a mounting hole 10 for a concrete wall surface, a well-known long hole 11 for a clip, and an L-shaped mounting hole. 5 is formed. In the present invention, the well-known mounting frame 1 as described above is used, but the mounting hole 10, the elongated hole 11 and the like may be omitted.

Hook arms 3, 3 are provided on both ends of a cover body 2, which is a synthetic resin molded product and has a U-shaped cross section, so as to face each other. The hook arm 3 may form a hinge 14 with respect to a support piece 13 formed integrally with the cover body 2, for example. That is, the support piece 13 and the hook arm 3
It is also possible to form linearly in a series and to bend the hook arm 3 at the hinge 14 to form. As shown in FIG. 3, the hook arm 3 is integrally formed with a substantially U-shaped elastic locking claw 4. The elastic locking claw 4 may be formed as a separate body and attached later. As shown in FIG. 2B, the width W ₁ of the elastic locking claw 4 is slightly smaller than the width W ₂ of the wide portion B of the L-shaped mounting hole 5 and is smaller than the width W ₃ of the narrow portion B. Widely formed. Further, the vertical width W _{4 of} the L-shaped wide portion B is narrower than that in the free state of the elastic locking claw 4.

Therefore, the elastic locking claw 4 is penetrated through the wide portion B of the mounting hole 5, and after the elastic locking claw 3 is elastically restored, the claw tip 4a of the elastic locking claw 4 is mounted in the mounting hole. The wiring device protective cover A is attached to the mounting frame 1 by engaging with the rear edge of the backside 5 to prevent it from being pulled out. In this way, by locking the claw tip 4a of the elastic locking claw 4 to the rear edge of the mounting hole 5, the cover body 2 can be easily and quickly mounted to the mounting frame 1, and compared to the screw fastening work. Therefore, the workability can be improved.

As shown in FIG. 3, the claw tip 4a of the elastic locking claw 4 is formed with an inclined surface T which becomes wider toward the claw tip side. The inclined surface T allows the elastic locking claw 4 to be easily inserted and inserted into the mounting frame 1. Figure 5
Shows another embodiment of the wiring device protective cover A, which is of a size capable of storing and protecting one wiring device S. The wiring device protective covers A of FIGS. 1, 4 and 6 are for three pieces.

FIG. 7 shows still another embodiment,
The wiring device S is formed in a double structure in which three wiring devices S are stored and protected in two rows. The partition wall 6 is provided in the center. Therefore, the partition wall 6 can prevent the wiring devices S, S arranged side by side from touching each other and suppress signal interference between the wiring devices S, S. Moreover, the slit-shaped elongated hole 12 is formed below the partition wall 6, and the partition wall 6 is connected to the bottom portion of the wiring device protective cover A at both ends of the elongated hole 12, and the partition wall 6 can be easily formed at the connecting portion. There is an advantage that they can be separated and the degree of freedom in constructing the protective cover A for wiring equipment can be increased.

[0015]

According to the invention of claim 1, there is provided a mounting structure of a wiring device protective cover which is mounted on a mounting frame which covers the wiring device and is mounted on the construction surface, and which has a U-shaped cross section. on both ends facing the hooking arms to each other projecting, elastic engaging nail is formed on the hooking arms, bullets
The sex locking claw is formed in a substantially U shape, and the tip of the claw has a toe
An inclined surface that becomes wider toward the end side is formed, and a slit-shaped mounting hole with a width narrower than the free state of the elastic locking claw is formed in the mounting frame, and the elastic locking claw penetrates the mounting hole, Since the tip of the elastic locking claw is locked to the back edge of the mounting hole by elastic restoration of the locking claw, elastic locking is performed when the cover body is mounted on the mounting frame mounted on the construction surface. By elastically displacing the claw into the slit-shaped mounting hole and penetrating the mounting hole, the elastic locking claw elastically restores after the penetration, and the claw tip is locked to the back edge of the mounting hole to cover the cover. There is an advantage that the main body can be easily and quickly attached to the attachment frame, the workability can be improved as compared with the screw fixing work, and the attachment can be stabilized.

Further, in the invention of claim 1 , the elastic locking claw is formed in a substantially U shape, and the tip end of the claw is formed with an inclined surface which becomes wider toward the claw tip side. The inclined surface has an advantage that the elastic locking claw can be easily inserted and inserted into the mounting frame. In the invention of claim 2 , the cover main body is formed in a double form covering the juxtaposed wiring devices, and the partition wall is provided in the central portion. Therefore, in addition to the effect of claim 1 , the cover body is juxtaposed by the partition wall. There is an advantage that the wiring equipment can be touched and signal interference between the wiring equipment can be suppressed.

According to the third aspect of the present invention, since the partition wall is configured to be separable, the partition wall 6 can be removed as necessary in addition to the function of the second aspect , and the protective cover for the wiring device can be removed. There is an advantage that the flexibility of specifications can be increased.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

2A is a perspective view, and FIG. 2B is an enlarged plan view of a mounting hole.

FIG. 3 is a partially enlarged perspective view.

FIG. 4A is a plan view of a mounted state, FIG. 4B is a side view, and FIG. 4C is a front view.

FIG. 5 shows another embodiment, (a) is a perspective view,
(B) is a plan view, (c) is a side view, and (d) is a front view.

FIG. 6 shows still another embodiment, (a) is a perspective view,
(B) is a plan view, (c) is a side view, and (d) is a front view.

FIG. 7 shows still another embodiment, (a) is a perspective view,
(B) is a plan view, (c) is a side view, and (d) is a front view.

[Explanation of symbols]

1 mounting frame 2 Cover body 3 hook arms 4 Elastic locking claw 5 mounting holes 6 partitions

─────────────────────────────────────────────────── --Continued from the front page (56) Reference JP-A-5-153710 (JP, A) Actually opened 54-29393 (JP, U) Actually opened 63-103078 (JP, U) JP-B 57- 3296 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) H02G 3/02

Claims (3)

(57) [Claims] 1. A mounting structure of a protective cover for a wiring device which is mounted on a mounting frame which covers the wiring device and is attached to a construction surface, wherein hook arms are respectively provided at both ends of a cover body formed in a U-shaped cross section. Protrusions facing each other, elastic locking claws are formed on the hook arm, and elastic locking claws are formed in a substantially U shape
However, the claw tip has an inclined surface that becomes wider toward the claw tip side.
Is formed, a slit-shaped mounting hole narrower than the free state of the elastic locking claw is formed in the mounting frame, the elastic locking claw penetrates the mounting hole, and the elastic locking claw elastically restores the elastic engagement. A structure for mounting a protective cover for a wiring device, characterized in that the claw tip portion of the claw is engaged with the rear edge of the mounting hole. 2. The cover body covers the wiring devices arranged side by side.
The mounting structure for a protective cover for wiring equipment according to claim 1 , wherein the mounting structure is formed in a double form, and a partition is provided in a central portion . 3. The mounting structure for a protective cover for a wiring device according to claim 2, wherein the partition wall is configured to be separable .